Fuji Electric frenic mini series, Руководство пользователя

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Glossary
G-5
Glossary
S-curve acceleration/deceleration
(weak/strong)
To reduce the impact on the inverter driven motor
during acceleration/deceleration, the inverter
gradually accelerates/decelerates the motor at the
both ends of the acceleration/deceleration zones
like a figure of S letter.
Related function code: H07
Running mode
One of the three operation modes supported by the
inverter. If the inverter is turned on, it
automatically enters this mode which you may:
run/stop the motor, set up the set frequency,
monitor the running status, and jog the motor.
Serial communications link
A feature to control an inverter from external
equipment serially linked to the inverter such as a
PLC.
Related function code: H30
Slip compensation control
A mode of control in which the output frequency
of an inverter plus an amount of slip compensation
is used as an actual output frequency to
compensate for motor slippage.
Related function code: P09
Stall
An action or behavior of a motor when by
overcurrent the running motor trips and loses its
speed.
Starting frequency
The minimum frequency at which an inverter starts
its output (not the frequency at which a motor
starts rotating).
Related function code: F23
Starting torque
Torque that a motor produces when it starts
rotating (or the power with which the motor can
run a load).
Simultaneous keying
To simultaneously press the 2 keys on the keypad.
This presents the special function of inverters.
Stop frequency
The output frequency at which an inverter stops its
output.
Related function code: F25
Thermal time constant
The time needed to activate the electronic thermal
facility after the preset operation level (current)
continuously flows. This is an adjustable parameter
value to meet the property of a motor that is not
manufactured by Fuji Electric.
Related function code: F12
Torque boost
If a general-purpose motor is run with an inverter,
voltage drops will have a pronounced effect in a
low-frequency region, reducing the motor output
torque. In a low-frequency range, therefore, to
increase the motor output torque, it is necessary to
augment the output voltage. This process of
voltage compensation is called torque boost.
Related function code: F09
Transistor output
A control signal that generates predefined data
from within an inverter via a transistor (open
collector).
Trip
In response to an overvoltage, overcurrent, or any
other unusual condition, actuation of an inverter's
protective circuit to stop the inverter output.
V/f characteristic
A characteristic representative of the variations in
output voltage (V), and relative to variations in
output frequency (f). To achieve efficient motor
rotation, the voltage/frequency characteristic helps
produce a motor torque matching the torque
characteristics of a load.